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//===-- RangeTest.cpp -----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Utility/RangeMap.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
using namespace lldb_private;
TEST(RangeVector, SignedBaseType) {
using RangeVector = RangeVector<int32_t, uint32_t>;
using Entry = RangeVector::Entry;
RangeVector V;
V.Append(10, 5);
V.Append(-3, 6);
V.Append(-10, 3);
V.Sort();
EXPECT_THAT(V,
testing::ElementsAre(Entry(-10, 3), Entry(-3, 6), Entry(10, 5)));
Entry e = *V.begin();
EXPECT_EQ(e.GetRangeBase(), -10);
EXPECT_EQ(e.GetByteSize(), 3u);
EXPECT_EQ(e.GetRangeEnd(), -7);
EXPECT_TRUE(e.Contains(-10));
EXPECT_TRUE(e.Contains(-8));
EXPECT_FALSE(e.Contains(-7));
EXPECT_TRUE(e.Union(Entry(-8, 2)));
EXPECT_EQ(e, Entry(-10, 4));
EXPECT_EQ(e.Intersect(Entry(-7, 3)), Entry(-7, 1));
}
TEST(RangeVector, CombineConsecutiveRanges) {
using RangeVector = RangeVector<uint32_t, uint32_t>;
using Entry = RangeVector::Entry;
RangeVector V;
V.Append(0, 1);
V.Append(5, 1);
V.Append(6, 1);
V.Append(10, 9);
V.Append(15, 1);
V.Append(20, 9);
V.Append(21, 9);
V.Sort();
V.CombineConsecutiveRanges();
EXPECT_THAT(V, testing::ElementsAre(Entry(0, 1), Entry(5, 2), Entry(10, 9),
Entry(20, 10)));
V.Clear();
V.Append(0, 20);
V.Append(5, 1);
V.Append(10, 1);
V.Sort();
V.CombineConsecutiveRanges();
EXPECT_THAT(V, testing::ElementsAre(Entry(0, 20)));
}
TEST(RangeVector, GetOverlaps) {
using RangeVector = RangeVector<uint32_t, uint32_t>;
RangeVector V1;
RangeVector V2;
RangeVector Expected;
// same range
V1.Append(0, 1);
V2.Append(0, 1);
Expected.Append(0, 1);
// no overlap
V1.Append(2, 2);
V2.Append(4, 1);
// same base overlap
V1.Append(10, 5);
V2.Append(10, 3);
Expected.Append(10, 3);
// same end overlap
V1.Append(27, 1);
V2.Append(20, 8);
Expected.Append(27, 1);
// smaller base overlap
V1.Append(33, 4);
V2.Append(30, 5);
Expected.Append(33, 2);
// larger base overlap
V1.Append(46, 3);
V2.Append(40, 7);
Expected.Append(46, 1);
// encompass 1 range
V1.Append(50, 9);
V2.Append(51, 7);
Expected.Append(51, 7);
// encompass 2 ranges
V1.Append(60, 9);
V2.Append(60, 3);
V2.Append(65, 3);
Expected.Append(60, 3);
Expected.Append(65, 3);
V1.Sort();
V2.Sort();
Expected.Sort();
EXPECT_EQ(RangeVector::GetOverlaps(V1, V2), Expected);
EXPECT_EQ(RangeVector::GetOverlaps(V2, V1), Expected);
}
using RangeDataVectorT = RangeDataVector<uint32_t, uint32_t, uint32_t>;
using EntryT = RangeDataVectorT::Entry;
static testing::Matcher<const EntryT *> EntryIs(uint32_t ID) {
return testing::Pointee(testing::Field(&EntryT::data, ID));
}
std::vector<uint32_t> FindEntryIndexes(uint32_t address, RangeDataVectorT map) {
std::vector<uint32_t> result;
map.FindEntryIndexesThatContain(address, result);
return result;
}
TEST(RangeDataVector, FindEntryThatContains) {
RangeDataVectorT Map;
uint32_t NextID = 0;
Map.Append(EntryT(0, 10, NextID++));
Map.Append(EntryT(10, 10, NextID++));
Map.Append(EntryT(20, 10, NextID++));
Map.Sort();
EXPECT_THAT(Map.FindEntryThatContains(0), EntryIs(0));
EXPECT_THAT(Map.FindEntryThatContains(9), EntryIs(0));
EXPECT_THAT(Map.FindEntryThatContains(10), EntryIs(1));
EXPECT_THAT(Map.FindEntryThatContains(19), EntryIs(1));
EXPECT_THAT(Map.FindEntryThatContains(20), EntryIs(2));
EXPECT_THAT(Map.FindEntryThatContains(29), EntryIs(2));
EXPECT_THAT(Map.FindEntryThatContains(30), nullptr);
}
TEST(RangeDataVector, FindEntryThatContains_Overlap) {
RangeDataVectorT Map;
uint32_t NextID = 0;
Map.Append(EntryT(0, 40, NextID++));
Map.Append(EntryT(10, 20, NextID++));
Map.Append(EntryT(20, 10, NextID++));
Map.Sort();
// With overlapping intervals, the intention seems to be to return the first
// interval which contains the address.
EXPECT_THAT(Map.FindEntryThatContains(25), EntryIs(0));
// However, this does not always succeed.
// TODO: This should probably return the range (0, 40) as well.
EXPECT_THAT(Map.FindEntryThatContains(35), nullptr);
}
TEST(RangeDataVector, CustomSort) {
// First the default ascending order sorting of the data field.
auto Map = RangeDataVectorT();
Map.Append(EntryT(0, 10, 50));
Map.Append(EntryT(0, 10, 52));
Map.Append(EntryT(0, 10, 53));
Map.Append(EntryT(0, 10, 51));
Map.Sort();
EXPECT_THAT(Map.GetSize(), 4);
EXPECT_THAT(Map.GetEntryRef(0).data, 50);
EXPECT_THAT(Map.GetEntryRef(1).data, 51);
EXPECT_THAT(Map.GetEntryRef(2).data, 52);
EXPECT_THAT(Map.GetEntryRef(3).data, 53);
// And then a custom descending order sorting of the data field.
class CtorParam {};
class CustomSort {
public:
CustomSort(CtorParam) {}
bool operator()(const uint32_t a_data, const uint32_t b_data) {
return a_data > b_data;
}
};
using RangeDataVectorCustomSortT =
RangeDataVector<uint32_t, uint32_t, uint32_t, 0, CustomSort>;
using EntryT = RangeDataVectorT::Entry;
auto MapC = RangeDataVectorCustomSortT(CtorParam());
MapC.Append(EntryT(0, 10, 50));
MapC.Append(EntryT(0, 10, 52));
MapC.Append(EntryT(0, 10, 53));
MapC.Append(EntryT(0, 10, 51));
MapC.Sort();
EXPECT_THAT(MapC.GetSize(), 4);
EXPECT_THAT(MapC.GetEntryRef(0).data, 53);
EXPECT_THAT(MapC.GetEntryRef(1).data, 52);
EXPECT_THAT(MapC.GetEntryRef(2).data, 51);
EXPECT_THAT(MapC.GetEntryRef(3).data, 50);
}
TEST(RangeDataVector, FindEntryIndexesThatContain) {
RangeDataVectorT Map;
Map.Append(EntryT(0, 10, 10));
Map.Append(EntryT(10, 10, 11));
Map.Append(EntryT(20, 10, 12));
Map.Sort();
EXPECT_THAT(FindEntryIndexes(0, Map), testing::ElementsAre(10));
EXPECT_THAT(FindEntryIndexes(9, Map), testing::ElementsAre(10));
EXPECT_THAT(FindEntryIndexes(10, Map), testing::ElementsAre(11));
EXPECT_THAT(FindEntryIndexes(19, Map), testing::ElementsAre(11));
EXPECT_THAT(FindEntryIndexes(20, Map), testing::ElementsAre(12));
EXPECT_THAT(FindEntryIndexes(29, Map), testing::ElementsAre(12));
EXPECT_THAT(FindEntryIndexes(30, Map), testing::ElementsAre());
}
TEST(RangeDataVector, FindEntryIndexesThatContain_Overlap) {
RangeDataVectorT Map;
Map.Append(EntryT(0, 40, 10));
Map.Append(EntryT(10, 20, 11));
Map.Append(EntryT(20, 10, 12));
Map.Sort();
EXPECT_THAT(FindEntryIndexes(0, Map), testing::ElementsAre(10));
EXPECT_THAT(FindEntryIndexes(9, Map), testing::ElementsAre(10));
EXPECT_THAT(FindEntryIndexes(10, Map), testing::ElementsAre(10, 11));
EXPECT_THAT(FindEntryIndexes(19, Map), testing::ElementsAre(10, 11));
EXPECT_THAT(FindEntryIndexes(20, Map), testing::ElementsAre(10, 11, 12));
EXPECT_THAT(FindEntryIndexes(29, Map), testing::ElementsAre(10, 11, 12));
EXPECT_THAT(FindEntryIndexes(30, Map), testing::ElementsAre(10));
EXPECT_THAT(FindEntryIndexes(39, Map), testing::ElementsAre(10));
EXPECT_THAT(FindEntryIndexes(40, Map), testing::ElementsAre());
}
TEST(RangeDataVector, CombineConsecutiveEntriesWithEqualData) {
RangeDataVectorT Map;
Map.Append(EntryT(0, 10, 47));
Map.Append(EntryT(10, 10, 47));
Map.Sort();
Map.CombineConsecutiveEntriesWithEqualData();
EXPECT_THAT(FindEntryIndexes(5, Map), testing::ElementsAre(47));
EXPECT_THAT(FindEntryIndexes(15, Map), testing::ElementsAre(47));
EXPECT_THAT(FindEntryIndexes(25, Map), testing::ElementsAre());
Map.Clear();
Map.Append(EntryT(0, 10, 47));
Map.Append(EntryT(20, 10, 47));
Map.Sort();
Map.CombineConsecutiveEntriesWithEqualData();
EXPECT_THAT(FindEntryIndexes(5, Map), testing::ElementsAre(47));
EXPECT_THAT(FindEntryIndexes(15, Map), testing::ElementsAre());
EXPECT_THAT(FindEntryIndexes(25, Map), testing::ElementsAre(47));
EXPECT_THAT(FindEntryIndexes(35, Map), testing::ElementsAre());
}
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